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| 1 | Spring migration duration exceeds that of autumn migration in Far East Asian Greater White-fronted Geese (Anser albifrons)显示文摘Background:Migration theory suggests,and some empirical studies show, that in order to compete for the best breeding sites and increase reproductive success,long-distance avian migrants tend to adopt a time minimization strategy during spring migration, resulting in shorter duration spring migration compared to that in autumn.Methods:Using GPS/GSM transmitters,we tracked the full migrations of 11 Greater White-fronted Geese (Anser albifrons) between southeast China and the Russian Arctic,to reveal the migration timing and routes of the East Asian population, and compare the difference in duration between spring and autumn migration of this population.Results:We found that migration in spring (79 ± 12 days) took more than twice as long to cover the same distance as in autumn (35 ±7 days).This difference in migration duration was mainly determined by significantly more time spent in spring (59±16 days) than in autumn (23± 6days) at significantly more stopover sites. Conclusions:We suggest that these geese, thought to be partial capital breeders, spent almost three quarters of total migration time at spring stopover sites to acquire energy stores for ultimate investment in reproduction, although we cannot reject the hypothesis that timing of the spring thaw also contributed to stopover duration.In autumn,they acquired necessary energy stores on the breeding grounds sufficient to reach Northeast China staging areas almost without stop, which reduced stopover times in autumn and resulted in the faster autumn migration than spring. | Xueqin Deng Qingshan Zhao Lei Fang Zhenggang Xu Xin Wang Haoren He Lei Cao Anthony David Fox | 2019 | Avian Research2019，10，3： | 9 |
| 2 | Effects of diphosphonic acid on ilmenorutile collecting property and research of action mechanism显示文摘The effects of several collectors and their dosage on pure ilmenorutile at different pH values were studied and the collecting strength of several representative collectors was investigated. The experimental results indicate that diphosphonic acid is a good collector for ilmenorutile and the recovery of ilmenorutile ranges from 90.87% to 91.70% when the pulp pH value is 2.0-4.0 and the dosage is 75mg/L. The sequence of collecting ability for several collectors is as follows: diphosphonic acid > TF279 > cyclic alkyl hydroximic acid> benzyl arsenic acid > salicylic hydroximic acid > alkyl hydroximic acid. Meanwhile, IAS (infrared absorption spectrum) and XPS (X-ray photoelectron spectroscopy) were used to detect and analyze the action mechanism of diphosphonic acid on ilmenorutile. IAS results showed that the characteristic absorption peak relating to P = O as well as P-O vibration occurred between wave numeber 1 140 and 1 032cm^-1, and diphosphonic acid had adsorbed on the surface of ilmenorutile. XPS results indicated that the binding energy of P2P peak of ilmenorutile had changed 0.45 eV after treated by diphosphonic acid. This proves that the adsorption is mainly chemical adsorption. | HaoRen FeifeiJi ShuxiangZhang MengBao QufeiZhang | 2002 | Journal of University of Science and Technology Beijing2002，9，4： | 9 |
| 3 | Carbon Diffusion in Hot Strips of Low Carbon Steel Produced by CSP Line under Different Thermal Histories显示文摘Two experiments were carried out on the same compact strip production (CSP) line, which differs in that one of them experienced γ→α→γ* thermal history. The differences in microstructure, precipitation, misorientation etc between two experiments were investigated by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron back-scattered diffraction (EBSD) and positron annihilation technique (PAT). The carbon concentration in matrix is more inhomogeneous in the experiment than that with γ→α→γ* thermal history. The specific precipitation characteristic in the experiment without γ→α→γ* thermal history is discussed on the basis of different carbon diffusion behavior and interaction between dislocation and excess carbon. | HaoYU HaoREN YonglinKANG KeluWANG | 2005 | Journal of Materials Science & Technology2005，21，1： | 8 |
| 4 | DNA Vaccine of SARS-Cov S Gene Induces Antibody Response in Mice显示文摘The spike (S) protein, a main surface antigen of SARS-coronavirus (SARS-CoV), is one of the most important antigen candidates for vaccine design. In the present study, three fragments of the truncated S protein were expressed in E.coli, and analyzed with pooled sera of convalescence phase of SARS patients.The full length S gene DNA vaccine was constructed and used to immunize BALB/c mice. The mouse serum IgG antibody against SARS-CoV was measured by ELISA with E.coli expressed truncated S protein or SARS-CoV lysate as diagnostic antigen. The results showed that all the three fragments of S protein expressed by E.coli was able to react with sera of SARS patients and the S gene DNA candidate vaccine could induce the production of specific IgG antibody against SARS-CoV efficiently in mice with seroconversion ratio of 75% after 3 times of immunization. These findings lay some foundations for further understanding the immunology of SARS-CoV and developing SARS vaccines. | PingZHAO Jin-ShanKE Zhao-LinQIN HaoREN Lan-JuanZHAO Jian-GuoYU | 2004 | Acta Biochimica et Biophysica Sinica2004，36，1： | 7 |
| 5 | Effect of PCEs with Different Functional Groups on the Performance of Cement Paste显示文摘The adsorption behaviors and dispersing properties of polycarboxylate superplasticizer(PCE) with different functional groups were systematically analyzed to reveal the theory and methods of modifying PCE molecular structures and regulating PCE performances. By substituting carboxylic groups with sulfonic groups, ester groups or acylamino groups, respectively, modified PCEs with different functional groups were synthesized. Results show that introducing low amount of ester groups or sulfonic groups into the PCE molecules has no negative effects on the fluidity of cement paste, while introducing acylamino groups into PCE molecules significantly weakens the fluidity of cement paste. At low amount(when the molar ratio of sodium methallyl sulfonate to TPEG is lower than 0.4), the rapid adsorption of sulfonic groups onto the cement particles contributes to the high dispersing performance of the sulfonic group modified PCEs. When the substitution ratio of acrylic acid by sulfonic acid is higher than 0.4, the viscosity and the yield stress of cement paste increases sharply. Redundant sulfonic groups lead to the excessive charge density of the PCE, which contributes to the inhomogeneous adsorption on the cement grains and hence results in the decline of the dispersing performance. Substitution of carboxylic group by acylamino group or ester group slightly changes the viscosity as well as the yield stress of cement paste. Introducing sulfonic group into PCE molecule improves the adsorption behavior of PCEs, while introducing ester group or acylamino group into PCE depresses the adsorption properties. | 何燕 ZHANG Xiong WANG Yiting KONG Yaning JI Tao SHUI Liangliang WANG Xiaofu WANG Haoren | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，5： | 3 |
| 6 | Influence of Polycarboxylate Superplasticizer on Rheological Behavior in Cement Paste显示文摘Molecular structures of polycarboxylate(PCE) superplasticizer significantly affect the rheological properties of cement paste. Consequently, we employed self-synthesized PCE copolymers with different carboxylic densities to investigate their influence on the rheological behavior of cement paste. Three typical rheological models were applied to analyze the rheological properties, including Power-law model, Bingham model as well as Herschel-Buikley model. In addition, the thixotropical performances of cement paste in the presence of PCE with different carboxylic densities were investigated. The results show that the carboxylic density of PCE greatly influences the dispersing performance of PCE superplasticizers. As carboxylic density increases, the dispersing capability of PCE improves, and P(PEG1-AA6) possesses the strongest dispersing capability, the initial fluidity and 1 h fluidity of cement paste are both the highest, and cement paste has the lowest viscosity and the smallest hysteresis loop. | 何燕 ZHANG Xiong KONG Yaning WANG Xiaofu SHUI Liangliang WANG Haoren | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，4： | 3 |
| 7 | Collecting property of diphosphonic acid for niobite显示文摘The effect of several collectors on the niobite synthetized under the condition of varying pH values and dosages were studied. The collecting property of several representative collectors was also investigated. The experimental result shows that di- phosphonic acid is a good collector for niobite. Its recovery is about 84.24%-91.17% when the pH value of the pulp is less than 5.0 and the dosage of diphosphonic acid is 140 mg/L. The sequences of the selectivity and collecting capacity of the collectors were compared. Infrared absorption spectrum (IAS) and X-ray photoelectron spectroscopy (XPS) were used to detect and analyze the ad- sorption mechanism of diphosphonic acid on the surface of niobite. The IAS result indicates that diphosphonic acid is indeed ad- sorbed on the surface of niobite, and the XPS result shows that the binding energy of P2p peak of niobite treated by diphosphonic acid has changed 2.85 eV. It confirms that the adsorption belongs to a chemisorption type. | HaoRen FeifeiJi GuilanSong ShuxiangZhang | 2005 | Journal of University of Science and Technology Beijing2005，12，2： | 2 |
| 8 | Text Summarization Using a Trainable Summarizer and Latent Semantic Analysis显示文摘 | Yeh Jen-Yuan Ke Haoren Yang Weipang | 2005 | Information Processing and ManagemenL2005，41，1： | 1 |
| 9 | The measure and evaluation of customer satisfaction显示文摘 | WANG Yongqing YAN Haoren | 2000 | Economic Management2000，，： | 1 |
| 10 | Influence of Initial Water Content on Synthesis of Silicalite-1 Zeolite显示文摘The effect of initial water content on the synthesis of silicalite-1 zeolite and its reaction performance in methanol to propylene(MTP) reaction was comprehensively investigated. The as-synthesized samples were characterized by XRD,N_2 adsorption and desorption, SEM, and FTIR techniques, and studied for the methanol to propylene(MTP) reaction. The results showed that the initial water content played a crucial role on the particle size and porous structure of the silicalite-1 zeolites. It was found that adding initial water to reach a certain amount, the crystal size reduced obviously and the mesoporous structure appeared. Upon applying the silicalite-1 zeolite samples in the MTP reaction, they showed excellent catalytic performance to reach a highest propene mass yield of 26.81%(on the CH_2 basis) and a P/E ratio of 6.28 in 2 h. The excellent catalytic performance of silicalite-1 can be attributed to its mesoporous structure. | Zhang Honghan Zhang Shanhe Wang Haoren Li Chunyi | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，4： | 1 |
| 11 | Adaptive-level memory caches on World Wide Web servers显示文摘 | HaoRen Ke RueiChuan Chang | 2000 | Computer Networks 322000，，： | 1 |
| 12 | Design and performance evaluation of mobile Web services in libraries: A case study of the Oriental Institute of Technology Library显示文摘 | Wang Chunyi Ke Haoren Lu Wenchen | 2012 | Electronic Library2012，30，1： | 1 |
| 13 | Design and per- formance evaluation of mobile web services in libraries : a case study of the Oriental Institute of Technology Library 显示文摘 | WANG Chunyi KE Haoren LU Wenchen | 2012 | Elec- tronic Library2012，，： | 1 |
| 14 | Advanced Syngas Upgrading Process for Conversion of Low-Rank Coals to Liquid Fuels显示文摘 | Andrew Lucero Amit Goyal Kevin McCabe Gerald Choi Haoren Lu Santosh Gangwal | 2016 | Journal of Geological Resource and Engineering2016，4，5： | 0 |
| 15 | Status of an MWth integrated gasification fuel cell powergeneration system in China显示文摘Abstract Here,we provide a status update of an integrated gasification fuel cell(IGFC)power-generation system being developed at the National Institute of Clean-and-Low-Carbon in China at the megawatt thermal(MWth)scale.This system is designed to use coal as fuel to produce syngas as a first step,similar to that employed for the integrated gasification combined cycle.Subsequently,the solid-oxide fuel-cell(SOFC)system is used to convert chemical energy to electricity directly through an electrochemical reaction without combustion.This system leads to higher efficiency as compared with that from a traditional coal-fired power plant.The unreacted fuel in the SOFC system is transported to an oxygencombustor to be converted to steam and carbon dioxide(CO_(2)).Through a heat-recovery system,the steam is condensed and removed,and CO_(2) is enriched and captured for sequestration or utilization.Comprehensive economic analyses for a typical IGFC system was performed and the results were compared with those for a supercritical pulverized coal-fired power plant.The SOFC stacks selected for IGFC development were tested and qualified under hydrogen and simulated coal syngas fuel.Experimental results using SOFC stacks and thermodynamic analyses indicated that the control of hydrogen/CO ratio of syngas and steam/CO ratio is important to avoid carbon deposition with the fuel pipe.A 20-kW SOFC unit is under development with design power output of 20 kW and DC efficiency of 50.41%.A 100 kW-level subsystem will consist of 6920-kW power-generation units,and the MWth IGFC system will consist of 59100 kWlevel subsystems. | Chang Wei Zhien Liu Chufu Li Surinder Singh Haoren Lu Yudong Gong Pingping Li Hanlin Wang Xia Yang Ming Xu Shujun Mu | 2021 | International Journal of Coal Science & Technology2021，8，3： | 0 |
| 16 | 忘了XP超级密码之后心得总结显示文摘提起Windowsxp(2000或NT)的密码丢失,可谓是十分令人头痛的事了,不管是自己不小心忘了密码也好,被别人恶意修改也好,一般都是重装系统,不但浪费时间,而且可能自己辛辛苦苦存储的资料也随之烟消云散。前两天,我为了试用一个软件,需要进入管理员模式安装,可是我把密码给弄丢了,摆弄了半天怎么也进不去,把我急死了。 | haoren | 2003 | 软件2003，24，3： | 0 |
| 17 | The role of single-boron of N-doped graphene for effective nitrogen reduction显示文摘Room-temperature electrocatalytic nitrogen reduction reaction(NRR)is of paramount significance for the fertilizer industry and fundamental catalysis science.However,many NRR catalysts were based on the use of metals.Herein,we focus on exploring boron-based,metal-free,efficient catalysts for NRR by den-sity functional theory calculations with van der Waals corrections(DFT+D3).Our results show that the NRR performance of the boron active site can be improved by tuning the N-coordination environment in a graphene sheet,and the B-N-C structures show excellent stability.By considering the correlation be-tween the Bader charges of the boron dopant over N-decorated graphene and their NRR activities,the ra-tional design principle of a boron-based catalyst for NRR is developed.The boron-site with one pyridinic nitrogen in a double-vacancy structure is found to be a highly active center,with low reaction energy(0.53 eV)and kinetic barrier(0.84 eV)through the distal mechanism.We also found that the charge loss of boron considerably hampers hydrogen adsorption,which in turn promotes the NRR efficiency by hin-dering the competing hydrogen evolution.This work offers new insights into developing low-cost,highly effective boron-based materials as promising electrocatalysts for green ammonia synthesis. | Chuangwei Liu Haoren Zheng Tianyi Wang Zhongyuan Guo Fangyuan Zhu Hongbo Xie Gaowu Qin Hao Li Song Li | 2023 | Journal of Materials Science & Technology2023，，28： | 0 |
| 18 | Hepatitis G virus genomic RNA is pathogenic to Macaca mulatta显示文摘AIM: To explore the pathogenicity and infectivity of hepatitis G virus (HGV) by observing replication and expression of the virus, as well as the serological and histological changes of Macaca mulatta infected with HGV genomic RNA or HGV RNA-positive serum.METHODS: Full-length HGV cDNA clone (HGVqz) was constructed and proved to be infectious, from which HGV genomic RNA was transcribed in vitro. Macaca mulatta BY1 was intra-hepatically inoculated with HGV genomic RNA, HGV RNA-positive serum from BY1 was intravenously inoculated into Macaca mulatta BM1, and then BB1 was infected with serum from BM1. Serum and liver tissue were taken regularly, and checked with RT-PCR, in situ hybridization and other immunological, serological,histological assays.RESULTS: Serum HGV RNA was detectable in all the 3Macaca mulattas, serological and histological examinations showed the experimental animals had slightly elevated alanine transaminase (ALT) and developed HGV viremia during the infectious period. The histology, immunohistochemistry, and in situ hybridization in liver tissues of the inoculated animals demonstrated a very mild hepatitis with HGV antigen expression in cytoplasm of hepatocytes.RT-PCR and quantitative PCR results showed that HGV could replicate in liver.CONCLUSION: The genomic RNA from full-length HGV cDNA is infectious to the Macaca mulatta and can cause mild hepatitis. HGV RNA-positive serum, from HGV RNA inoculated Macaca mulatta, is infectious to other Macaca mulattas. Macaca mulatta is susceptible to the inoculated HGV, and therefore can be used as an experimental animal model for the studies of HGV infection and pathogenesis. | HaoRen Fen-LuZhu Ming-MeiCao Xin-YuWen PingZhao Zhong-TianQi | 2005 | World Journal of Gastroenterology2005，11，7： | 0 |
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